Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 210: | \[{10^{210}-1\over9}\] | 3 × 72 × 11 × 13 × 31 × 37 × 41 × 43 × 71 × 127 × 211 × 239 × 241 × 271 × 1933 × 2161 × 2689 × 4649 × 9091 × 123551 × 459691 × 909091 × 2906161 × 4147571 × 10838689 × 29970369241<11> × 30703738801<11> × 625437743071<12> × 1661378260814161<16> × 102598800232111471<18> × 265212793249617641<18> × 18276168846821336356291<23> × 57802050308786191965409441<26> |